Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Helen Dukes0
John David Payne0
Date of Patent
October 23, 2007
0Patent Application Number
100494360
Date Filed
July 26, 2000
0Patent Primary Examiner
Patent abstract
An air-filter for a circulating and/or recirculating air system using a filter medium containing a microbiologically effective amount of a polymeric biguanide or salt thereof. Also claimed is a method for reducing odors and/or air-borne micro-organisms in a circulating or recirculating air system using the air-filter, and a method for protecting an air-filter medium against microbial degradation by incorporating in, or on, the medium a microbiologically effective amount of a polymeric biguanide or salt thereof.
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